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Dwyer Instruments PFT-IAN-S111-S | Insertion paddlewheel flow sensor | 4-20 mA output | 316SS body | 1-1/2" NPT connection | FKM seals | Tungsten-carbide shaft | PTFE bearing
Brass or 316 SS bodies are offered for the Model PFT-IAN-S111-S Insertion Paddlewheel Flowmeters, which are used to measure liquid flow rates in pipes ranging in size from 1-1/2 to 40". The device produces a 4–20 mA output or a frequency proportional pulsed output. The 4 to 20 mA variants feature a linear velocity output, with 4 mA equal to 0 ft/s and 20 mA equivalent to 25 ft/s. The pulse models provide a square wave output signal with frequency proportionate to the flow velocity.
- Specifications
- Features
- Downloads
| Approvals | CE |
| Connection | Electrical: 22 AWG shielded UL type PTLC rated 105°C, 20' (6.1 m) long with cable gland. Can be extended up to 2000' (609 m) with similar cable. Optional UL listed burial rated cable |
| Connection | Process: 1-1/2" NPT male standard, 2" NPT male optional |
| Enclosure Rating | NEMA 6P (IP67) * |
| Housing Material | Brass or 316 SS |
| Linearity | +/-1.0% of FS |
| Manufacturer | Dwyer Instruments |
| Material | Wetted: Body and fitting: Brass or 316 SS Fitting O-ring: FKM standard, silicone or Buna-N optional Impeller: 316 SS Shaft: tungsten carbide standard or 316 SS optional Bearing: PTFE standard |
| Maximum Operating Pressure | 400 psig (27.6 bar) @ 100°F (37.8°C), 325 psig (22.4 bar) @ 212°F (100°C) |
| Maximum operating temperature | -40 to 212°F (-40 to 100°C) |
| Output | Pulse: NPN open collector with square wave output, rated 60 V @ 50 mA maximum Frequency: 3.2 to 200 Hz Pulse Width: 2.5 msec +/-25% 4 to 20 mA: 4 mA is 0 ft/s, 20 mA is 25 ft/s |
| POWER CONSUMPTION | 40 mA (max) |
| Power | 10 to 35 VDC |
| Range | 1.2 to 25 ft/s (0.37 to 7.62 m/s) |
| Repeatability | +/-0.5% of FS |
| Type | Insertion paddlewheel flow sensor |
| Weight | 3 lb. (1.36 kg) |
- Long product life because of the superior wear protection provided by the bearings and shaft, even in situations with particulates.
- Use in submersible and weatherproof irrigation applications.
- Using a single unit that can be adjusted over a wide variety of pipe sizes can save time and inventory.
- Flexibility in application with an array of wetted material options.
- With an integrated 4–20 mA output, there is less need for extra peripheral components.
- Sensing technology eliminates issues about magnetic material in flow since it employs inductive sensing instead of magnets.
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